Comparative efficacy of Insecticides against Mustard aphid, Upaphis erysimi Kalt

Difenthiuron 50 WP @ 50 g a.i. ha⁻¹ proved most effective in managing the aphids incidence and realizing higher yield of mustard (10.70 q ha⁻¹) followed by thiamethoxam 25 WG @ 25 g a.i. ha⁻¹ (10.53 q ha⁻¹) and acetamiprid 25 SP @ 40 g a.i. ha⁻¹ (10.12 q ha⁻¹). Treatments viz. imidacloprid 200 SL @ 50 g a.i. ha⁻¹ and betacyfluthrin 25 SC @ 25 g a.i. ha⁻¹ were comparatively less effective in reducing the pest population and they were statistically equally in realizing the yield of mustard but superior to achook 0.15 EC @ 800 g a.i. ha⁻¹ (8.68 q ha⁻¹) and dimethoate 30 EC @ 400 g a.i. ha⁻¹ (8.85 q ha⁻¹).